Ardoino da Piacenza

Ardoino da Piacenza (died January 21, 1183) was an Italian cardinal. Hi first name is listed also as Arduino.

He was archdeacon of the cathedral chapter of Piacenza and member of the Order of Canons Regular de San Frediano di Lucca. Pope Alexander III created him Cardinal in the consistory celebrated in Frascati in 1178. Between July 4 and September 6, 1178 he signed a papal bull as Cardinal-Deacon of S. Maria in Via Lata, but shortly thereafter he was promoted to the rank of Cardinal-Priest of S. Croce in Gerusalemme; as such, he signed the bulls from October 1, 1178 until January 8, 1183. He participated in the papal election, 1181, which elected Pope Lucius III. He wrote an opuscle titled De Deo immortali.

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